Home / 1,330,013.10-1,995,300.04-431,384.97

Finding the Fourth Proportional to 1,330,013.10, 1,995,300.04 and 431,384.97

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Solution

The fourth proportional to 1,330,013.10, 1,995,300.04 and 431,384.97 is: 647,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,013.10 : 1,995,300.04 = 431,384.97 : x
  2. Step 2: Convert to fraction form
    1,330,013.10/1,995,300.04 = 431,384.97/x
  3. Step 3: Cross multiply
    1,330,013.10x = 1,995,300.04 × 431,384.97
  4. Step 4: Simplify right side
    1,330,013.10x = 860,742,445,739.47
  5. Step 5: Solve for x
    x = 860,742,445,739.47/1,330,013.10
  6. Step 6: Final answer
    x = 647,168.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.